An Experimental Investigation of the Aeration Performance of Parshall Flume and Venturi Flumes
Küçük Resim Yok
Tarih
2016
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Korean Society Of Civil Engineers-Ksce
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Parshall flumes are commonly used in irrigation systems, storm water systems, and sewer systems in order to measure the flow rate. The dissolved oxygen content in surface waters is a main indicator of the quality of that water for human use as well as use by the aquatic plant and animal life. A higher dissolved oxygen content supplies better water quality. Hydraulic structures can increase dissolved oxygen ratios by causing turbulent fluctuations during which air bubbles entrain the bulk of the flow. This present study focuses on determining the aeration efficiency of a small 3 inch Parshall flume and Modified Venturi flumes from this Parshall flume, in particular the effect of varying throat width, throat length and sill height. The experiments were conducted for 26 different Modified Venturi flumes and 1 Parshall flume. In the study, the water surface profiles and aeration efficiencies of the flumes are determined. The results indicate that Parshall and Venturi flumes are effective for oxygen transfer for channels having zero or highly low slopes. In addition, more studies are needed to find the best efficient system for horizontal channels.
Açıklama
Anahtar Kelimeler
aeration performance, dissolved oxygen, parshall flume, oxygen transfer, open channel flow, venturi flume
Kaynak
Ksce Journal of Civil Engineering
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
20
Sayı
2
